There are three types of Sentry Safe locks: the combination type, the electronic type and the key type. The combination type and the electronic type are usually equipped with a Sentry key for added protection. On rare occasions, a key might not open a Sentry Safe. Dec 07, 2012 · I own a Stack-on safe and had a Stack-on gun cabinent. The cabinent twisted somehow but is still being used by my son some 15 years later for what it was intended. I got it used. I have been very pleased with the safe although it is not fire proof. I like the lay out and it is very solid.
For small items you need to secure, the Key Safe is a simple and easy solution. This miniature stainless steel cylinder latches onto your keychain and unscrews to hold your items, making them retrievable at a moment's notice.
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